12 C. BOVALLIUS. NEW ISOPODA. II. 
The second pair of pleopoda (P1. II. fig. 16) carry an unusual 
short, styliform process: The outer lamine of the pleo- 
poda are bordered with a frame of equal, quadrangular scales, 
between the corners of these scales originate long plumose 
härss(PAGIER for I): 
The urus is almost as long as broad, broadly tongue- 
shaped. The posterior margin rounded, fringed with long, 
plumose hairs and between them short, obtuse spines. (P1. II. 
fig. 18). 
The uropoda (P1. II. fig. 19) reach exactly to the end of 
the urus; the acuminated projection from the peduncle is 
more than twice as long as the peduncle itself (11:35) and 
nearly as long as the outer ramus (11:12), fringed with long, 
plumose hairs. The inner ramus is longer than the outer 
(53:4) and a little broader. Both are oblong, serrated. at the 
outer margins and provided with short spines; around the 
margins they are fringed with long, plumose hairs. 
Colour. From the specimen preserved in alcohol it seems 
to have been yellowish-brown. : 
Length. 20 mm. 
Hab. "The Mediterranean (Z. M-.) 
Only one specimen. I got it among a collection of 
crustacea from the naturalist-merchant CARL WESSEL in Ham- 
burg. 
5. Slabberina gracilis. N. sp. 
(Pl. II. fig. 20—26). 
Diagn. Corpus elongatum, gracile. ter fere longius quam latius. 
Caput magnum, duplo latius quam longius. 
Oculi grandes, reticulati, ocellis magnis. A 
Antenne primi paris capite longiores, flagello IV-articulato in- 
structe; articulus primus fagelli articulo ultimo pedunculi 
brevior. 
Antenmne secundi paris marginem anteriorem segmenti sexti pereii 
attingentes, flagello XIV-articulato instructz. 
Segmentum quintum pereii segmenta duo priora longitudine equans. 
Pedes pereii parium trium priorum breves, metacarpi eorum acu- 
leo cultriformi instructi. Pedes pereii parium quattuor ulti- 
morum longi, illi tamen septimi paris precedentibus multo 
breviores. 
Epimera distincta. 
Segmenta plei subequalia, primum non obtectum. 
Urus semicircularis. 
